How to design a bedroom for better sleep

Your bedroom is the one room in your home that should be fully optimized for rest. Yet most bedrooms are designed around aesthetics, storage, or habit, not sleep quality.

The good news: a few intentional changes to light, sound, temperature, and your mattress can make a measurable difference in how well you sleep. Here's what actually matters.

In This Guide

• Control Light. Especially at Night
• Get the Temperature Right
• Manage Sound and Noise
• Remove Screens and Reduce Tech
• The Mattress: Your Single Biggest Sleep Investment
• Bedroom Layout and Clutter
• Air Quality and Scent
• Sleep-Optimized Bedroom Checklist
• FAQ

1. Control Light. Especially at Night

Light is the most powerful signal your brain uses to determine whether it's time to be awake or asleep. Even small amounts of light during sleep can disrupt the quality and depth of your rest.

What to do:

• Block outside light. Blackout curtains are the most effective solution. Even if your room seems dark, streetlights and early morning sun can disrupt sleep stages.
• Eliminate device glow. Charging lights, router indicators, cable boxes, tape over or unplug anything that emits light at night.
• Dim the lights an hour before bed. Bright overhead lighting suppresses melatonin production. Switch to a warm-toned lamp (2700K) in the evening.
• Avoid screens for 30–60 minutes before sleep. Blue light from phones and TVs delays the sleep signal. If you must use a screen, use night mode or a blue-light filter.

Worth knowing: Even brief light exposure in the middle of the night, to check a phone or use the bathroom, can reduce melatonin and make it harder to fall back asleep. Use a dim red or amber nightlight if you need to navigate in the dark.

2. Get the Temperature Right

Your body temperature naturally drops as you fall asleep. A cooler room helps that process along, a warm room works against it.

The research-backed sweet spot: 65–68°F (18–20°C) for most adults. That said, individual preferences vary. Some people sleep well at 63°F, others at 70°F. If you regularly wake up sweating or feeling cold, your room temperature is likely the culprit.

Ways to regulate bedroom temperature:

• Use a programmable thermostat set to drop 2–3 degrees at bedtime
• Use breathable sheets (percale cotton, linen, or moisture-wicking materials)
• Layer bedding so you can adjust without fully waking up
• A ceiling fan on low can help even if you don't lower the AC. It creates airflow that helps with perceived warmth
• If you sleep with a partner who runs hot or cold, consider separate blankets on the same mattress

If your mattress retains heat (common with older memory foam), a breathable mattress topper or upgrading to a hybrid mattress with better airflow can help significantly.

3. Manage Sound and Noise

You may not consciously hear noise during sleep, but your brain continues to process sound, and disruptive sounds can pull you into lighter sleep stages without fully waking you.

Practical solutions:

• White noise machine or fan: Masks intermittent sounds (traffic, neighbors) without creating silence that makes sudden noises more disruptive
• Earplugs: Effective for consistent noise environments, though some people find them uncomfortable for all-night use
• Heavy curtains and rugs: Soft furnishings absorb sound, an underrated benefit of a well-furnished bedroom
• Move the bed: If possible, position your headboard on an interior wall rather than one shared with a noisy street or neighbor

4. Remove Screens and Reduce Tech

The bedroom has become the default place where many people catch up on email, scroll social media, or watch TV before sleep. This works against restful sleep in multiple ways: the blue light suppresses melatonin, the content keeps your brain stimulated, and the habits create a mental association between your bed and being awake and active.

The case for a screen-free bedroom:

• Your brain associates spaces with behaviors. The more you do stimulating things in bed, the harder it becomes to switch off when you actually want to sleep.
• Keeping a phone on the nightstand, even face-down, tempts late-night checking, which disrupts both sleep onset and sleep continuity.
• Removing TV from the bedroom forces you to wind down differently, and most people report falling asleep faster when they do.

If removing the TV entirely isn't realistic, set a firm cutoff time and avoid watching anything high-stakes (news, thrillers) in the last hour before bed.

5. The Mattress: Your Single Biggest Sleep Investment

You can optimize every other element of your bedroom and still sleep poorly if your mattress isn't right. It's the foundation everything else rests on.

Signs your mattress is affecting your sleep:

• You wake up with aches in your back, hips, or shoulders
• You sleep better at hotels or other people's homes
• Your mattress is 7–10+ years old and shows visible sagging or wear
• You feel your partner moving throughout the night (poor motion isolation)
• You wake up feeling unrested despite getting enough hours of sleep

What to look for:

• Side sleepers generally do best with a medium to medium-soft mattress that cushions the shoulder and hip
• Back sleepers typically need medium to medium-firm support to keep the spine neutral
• Stomach sleepers usually need firmer support to prevent the hips from sinking
• Hot sleepers should prioritize breathability, look at hybrid mattresses or latex mattresses
• Couples benefit from good motion isolation, memory foam or individually wrapped coil hybrids both work well

The best way to choose is to try before you buy. At LA Mattress Store, you can test mattresses across all categories at any of our five LA showrooms. We also offer a 120-night comfort guarantee, so there's no pressure to make a perfect decision in the store.

6. Bedroom Layout and Clutter

How your room is arranged affects how restful it feels. A cluttered, chaotic space keeps the brain subtly alert. There's always something to look at, fix, or think about.

Layout principles for better sleep:

• Position your bed away from the door if possible. Most people feel more secure and relaxed when they can see the entry point without being directly in line with it.
• Keep nightstands clear. Phone charging cable, a glass of water, and maybe a book. That's enough. Stacks of paperwork or gadgets add visual noise.
• Remove work materials from the bedroom. Even a laptop bag or documents in the corner can keep your mind on work mode.
• Limit the bedroom to sleep and intimacy. The more functions a room serves, the harder it becomes to mentally switch off when you enter it for sleep.

7. Air Quality and Scent

Stale, dry, or allergen-heavy air can disrupt sleep through congestion, coughing, or throat irritation, often without you realizing air quality is the issue.

Quick improvements:

• Open windows briefly during the day to exchange stale air
• Run an air purifier with a HEPA filter if you have allergies or live near traffic
• Keep a small humidifier running if your home runs dry in winter
• Wash bedding frequently, pillow covers especially

Scent for sleep: Lavender is the most studied scent for sleep onset. A reed diffuser, pillow spray, or small candle (extinguished before sleep) with lavender, chamomile, or cedarwood can help signal wind-down. Keep it subtle, strong scents can be stimulating rather than calming.

If allergens are a consistent issue, consider a certified organic mattress or a quality mattress protector to reduce dust mite exposure at the sleep surface.

Sleep-Optimized Bedroom Checklist

• ☐ Blackout curtains or blinds installed
• ☐ All device and charger lights covered or removed
• ☐ Thermostat set to 65–68°F at night
• ☐ Breathable sheets and layered bedding
• ☐ White noise machine or fan if noise is an issue
• ☐ No TV or screens in the bedroom (or firm cutoff time)
• ☐ Phone charging outside the room or at least off the nightstand
• ☐ Mattress less than 8–10 years old and appropriate for your sleep style
• ☐ Bedroom used primarily for sleep and rest
• ☐ Nightstands clear of clutter
• ☐ Air quality addressed (purifier, humidifier, regular washing)

Frequently Asked Questions

What color should a bedroom be for better sleep?

Soft, muted tones work best. Cool blues, warm greys, and earthy neutrals are all associated with relaxation. Avoid highly saturated or bright colors like red or orange as dominant wall colors. They tend to be stimulating rather than calming.

Does bedroom size affect sleep quality?

Not directly, but a cramped, cluttered room can create a stressed, unsettled feeling. Even a small bedroom can be restful if it's well-organized and the sleep environment is optimized.

How important is a bed frame or foundation?

More important than most people think. A poor or sagging foundation can accelerate mattress wear and affect how a mattress performs. If your mattress feels different than when you bought it, the foundation is worth inspecting. Our team can help match you with the right bed frame for your mattress.

Should my bedroom have plants?

Plants can improve air quality in a small way and add a calming aesthetic element. Most common bedroom plants (snake plants, pothos, peace lilies) are safe and low-maintenance. Some people with allergies may react to certain plants or their soil, test and see.

What's the single best change I can make for better sleep tonight?

Get your phone out of arm's reach. Put it across the room or in another room before bed. The research on late-night phone use and sleep disruption is consistent, even people who don't think they use their phones much in bed tend to sleep better when the phone is further away.

---

If you're ready to build a truly sleep-optimized bedroom, the mattress is the most important investment you'll make. Our team at LA Mattress Store can help you find the right mattress for your sleep style, budget, and bedroom. Visit one of our five LA showrooms or explore online. And if you're not ready to commit, our 120-night comfort guarantee means you can try at home first.