Nursery Setup for Better Sleep: What You Actually Need (and What You Don't)

No — not immediately. The Lullaby Trust recommends that your baby sleeps in the same room as you for the first six months, for every sleep, day and night. This means your baby's sleep space for the first half-year will be in your bedroom, not a separate nursery.

This is one of the most important pieces of safe sleep guidance, and it is worth emphasising because the nursery products industry spends enormous amounts of money convincing expectant parents that a fully decorated nursery is essential before the baby arrives. It is not.

Room sharing is protective. Research shows that a parent's breathing and movement help regulate a baby's own breathing patterns and arousals. Room sharing does not mean bed sharing — it means baby sleeps in their own safe sleep space (a cot, Moses basket, or bedside crib) in the same room as you.

A fully decorated nursery can wait. What cannot wait is a safe sleep space — and that is far simpler and less expensive than most people think.

The essentials for safe sleep are remarkably simple: a firm, flat, waterproof mattress (always buy new), a cot, Moses basket, or bedside crib that meets British Safety Standards, two to three fitted sheets, a sleeping bag appropriate for the room temperature, and a room thermometer. Everything else is optional.

The Lullaby Trust and NHS guidance is clear about what makes a safe sleep environment:

• A firm, flat, waterproof mattress. Always buy new. The NHS and Lullaby Trust both recommend a new mattress for each baby. Second-hand mattresses may harbour unseen bacteria, mould, or have lost firmness. If you press your hand into it and the impression remains, it is too soft. A new cot mattress starts from around twenty-five pounds — this is not the place to cut costs.
• A cot, Moses basket, or bedside crib that meets British Safety Standards (BS EN 716 for cots, BS EN 1466 for Moses baskets, BS EN 1130 for bedside cribs). Second-hand cots are fine as long as they are structurally sound, have no missing parts, and meet these standards.
• Two to three fitted cotton sheets for the mattress, so you always have a clean one ready.
• A sleeping bag appropriate for the room temperature. Sleeping bags are safer than loose blankets because they cannot ride up over your baby's face.
• A room thermometer. The NHS recommends keeping the room between 16 and 20 degrees Celsius. Overheating is a risk factor for SIDS. Even a basic digital thermometer gives you the information you need.
• A blackout solution. Essential for daytime naps and long summer evenings. This does not need to be expensive — temporary stick-on blackout material works brilliantly.

That is genuinely the complete list of essentials. A safe, Lullaby Trust-compliant sleep setup can be achieved for well under one hundred and fifty pounds.

The safest sleep environment is the simplest one. The Lullaby Trust advises keeping the cot completely clear — no pillows, toys, bumpers, or loose bedding — and several popular nursery products are either unnecessary for sleep or actively unsafe.

Products to avoid:

• Cot bumpers. Despite being widely sold, cot bumpers are a suffocation and strangulation risk. The Lullaby Trust explicitly advises against them. Babies may bump the cot sides occasionally, but this is not dangerous — bumpers are.
• Sleeping pods and nests (such as DockATot and similar products). These are not recommended for unsupervised sleep by the Lullaby Trust. The soft, padded sides pose a suffocation risk and overheating risk. They may be used for supervised awake time, but not for sleep.
• Wedges and sleep positioners. Marketed for reflux, these inclined surfaces increase the risk of positional asphyxia. They have been linked to infant deaths and should never be used.
• Weighted sleep products. Weighted blankets, sleeping bags, and swaddles are not safe for babies. They can restrict breathing and movement, and increase overheating risk.
• Pillows (under 12 months). Babies do not need pillows. They pose a suffocation risk.
• Loose blankets, duvets, or quilts (under 12 months). Use a sleeping bag instead.
• Soft toys in the sleep space (under 6 months at minimum). A comforter or lovey can be introduced as a sleep aid from around 12 months, but the cot should be clear for the first 6 months.

The guiding principle is this: if a product claims to make your baby sleep longer, sleep more deeply, or sleep in a position other than flat on their back, treat the claim with extreme scepticism. The Lullaby Trust's guidelines are clear, free, and evidence-based. You do not need to buy safety.

Complete darkness is ideal for sleep. When you need light for night feeds and nappy changes, use a red or amber night light — these colours have the longest wavelengths and do not suppress melatonin production, so they will not signal "daytime" to your baby's brain.

This is one of the areas where the evidence is clear and the practical impact is significant. Blue and white light — including light from phone screens, overhead lights, and many commercial night lights — actively suppresses melatonin, the hormone that drives sleepiness. Research has found that exposure to room light before bedtime suppressed melatonin onset in 99% of individuals and shortened melatonin duration by approximately 90 minutes.

Practical lighting guidance:

• For sleep: As dark as possible. Invest in a good blackout solution rather than an expensive night light. For daytime naps and long summer evenings, blackout is more important than any other single environmental factor.
• For night feeds: Use a dim red or amber light. A simple red LED plug-in night light is inexpensive and effective. Salt lamps also produce a warm amber glow that works well.
• Avoid: Blue or white night lights, leaving the TV on, using your phone screen during night feeds (the blue light affects both you and your baby), and projector-style night lights that create movement and stimulation in the room.

A blackout solution does not need to be expensive. Temporary stick-on blackout fabric, portable suction-cup blinds, or even black bin bags and masking tape on the windows will do the job. Effectiveness matters more than aesthetics, especially for a room your baby will be sleeping in for years.

The NHS recommends keeping the room temperature between 16 and 20 degrees Celsius for safe sleep. Overheating is a risk factor for SIDS, so monitoring room temperature and dressing your baby appropriately for that temperature is genuinely important.

A room thermometer is one of the cheapest and most useful items you can buy. Place it near the cot, away from radiators and windows, to get an accurate reading of the air temperature around your baby.

Keeping the room cool enough:

• In winter, set the central heating to a level that keeps the room below 20 degrees. Many homes are kept warmer than this, particularly bedrooms.
• In summer, use a fan (pointed away from the baby, not directly at them) to circulate air. A 2008 study found that fan use was associated with a 72% reduction in SIDS risk, likely due to improved air circulation reducing CO2 rebreathing.
• On hot nights, a lower TOG sleeping bag (0.5 or 1.0) with fewer layers underneath is more appropriate than no sleeping bag at all.

How to check your baby's temperature: Feel the back of their neck. It should be warm but not sweaty. Cool hands and feet are normal and are not a reliable indicator of core body temperature. If your baby's neck is damp or their chest feels hot, remove a layer or adjust the TOG.

For a detailed guide on temperature and what your baby should wear for sleep, we have a separate post that covers layering in depth.

Place the cot away from radiators, windows, blind cords, and direct sunlight, and ensure there is enough space for you to access it easily at night. If using a bedside crib, make sure it is properly attached to the bed with no gaps between the crib and the adult mattress.

Placement considerations:

• Away from radiators. Overheating is a SIDS risk factor, and a cot next to a radiator can raise the temperature in the immediate sleep space significantly above the room temperature reading on your thermometer.
• Away from windows. Blind cords are a strangulation hazard. Direct sunlight can overheat the cot. Drafts from windows in winter can make the sleep space too cold. If the cot must be near a window, ensure all cords are removed or secured out of reach and use cordless blinds.
• Accessible. You will be reaching into this cot multiple times a night, especially in the early months. Make sure you can get to it easily without climbing over furniture or navigating obstacles in the dark.
• Away from shelves and wall decorations that could fall into the cot.

For bedside cribs: Ensure the crib is at the exact same mattress height as your bed and is securely attached according to the manufacturer's instructions. Gaps between the crib and the bed are a suffocation risk. Check the attachment every few days, as it can work loose.

For the first six months, the cot or crib will be in your bedroom. When you eventually transition your baby to their own room, the same placement principles apply — and you will want a reliable baby monitor so you can hear them.

The baby products industry is worth billions, and much of what is marketed for nurseries is unnecessary, overpriced, or — in some cases — actually counterproductive for sleep. The safest and most effective nursery is often the simplest one.

Items you can skip or find cheaper alternatives for:

• Matching nursery furniture sets. A cot is a cot. Your baby does not care if the changing table matches the wardrobe. A cot that meets British Safety Standards is a cot that meets British Safety Standards, regardless of whether it came as part of an eight-hundred-pound set.
• A dedicated changing table. A changing mat on the floor or on top of a chest of drawers does the same job. Many families never use a changing table.
• An expensive nursing chair. Any comfortable chair works. Some parents find a supportive chair in the nursery helpful for night feeds, but a dining chair with a cushion, or feeding in bed, works perfectly well.
• A cot mobile. These must be removed once your baby can pull up to standing, which gives them a short useful life. They are more stimulating than soothing for many babies.
• Smart baby monitors with breathing sensors. These are not medical devices and are not recommended by the Lullaby Trust as a SIDS prevention tool. A basic audio monitor is sufficient for safe sleep monitoring. For more on this, see our guide to sleep monitors.
• A white noise machine. Worth having, but you do not need to spend a lot. A free phone app at a safe volume works identically to a dedicated machine for the purpose of producing consistent background sound.

The most powerful message in all of this is permission. You do not need to spend thousands to create a safe sleep environment for your baby. The safest nursery is the simplest one. And if your budget is tight, the essentials — a safe sleep space, a new mattress, a sleeping bag, and a thermometer — are achievable for well under one hundred and fifty pounds.

If you are feeling overwhelmed by the choices, or if you want help making sure your sleep environment is set up well for your specific home and circumstances, personalised support can take the guesswork out of it entirely. Send us a message on WhatsApp and we will help you get it right.