Every summer it's the same problem. Too hot to sleep under anything. Too cold without a blanket. The AC running all night while your partner complains about the electricity bill and you're still waking up drenched at 3am.
There's a better way.
Why Summer Sleep Is So Hard
Your body needs to drop its core temperature to fall and stay asleep. Summer makes that harder — warm air, humid nights, and a bedroom that holds heat from the day all work against the cooling process your body is trying to do naturally.
Most people respond by turning the AC down further, which works but is expensive and often creates a different problem — your partner is freezing while you're still overheating.
What Actually Helps
Keep your bedroom below 68°F. This is the single highest-impact change you can make. If the room stays cool, your body can do the rest. A ceiling fan helps move air even when the AC isn't running full blast.
Ditch the regular blanket. A conventional blanket — even a thin one — traps heat against your body. In summer that heat builds up fast. A blanket made from thermally conductive material actively draws heat away from your skin instead of holding it in. That's the difference between waking up at 3am and sleeping through.
Cool down before bed. A lukewarm or cool shower 30–60 minutes before bed lowers your skin temperature and actually speeds up sleep onset. It's one of the most underrated sleep hacks for summer.
Block heat during the day. Blackout curtains or blinds keep your bedroom from becoming an oven during the afternoon. A room that starts cool at 10pm is much easier to keep cool than one that's been absorbing heat all day.
The Blanket Problem Specifically
The reason most people still wake up hot even with the AC on is the blanket. You need it to fall asleep — the weight and comfort are part of how your brain signals it's time to rest. But every conventional blanket insulates more than it breathes.
A cooling blanket with a high-conductivity shell — nylon rather than polyester or cotton — keeps drawing heat away from your skin throughout the night rather than just feeling cool for the first few minutes. The difference is most noticeable at 2–4am when body temperature naturally rises slightly and a regular blanket tips you over the edge.
The Stillwell Cloud was built for exactly this. Lightweight enough for summer, cool enough to actually make a difference. See The Cloud →
The Bottom Line
You don't need the AC at full blast all night. You need a cool room, good airflow, and a blanket that works with your body temperature instead of against it. Get those three things right and summer nights become genuinely comfortable.