Tonight in Brent
Poor sleeping conditions
Difficult night ahead.
Sleep Score
2
⁄10
Bad
Overnight low
23°C
Tropical — brutal
Stickiness
18°C
Muggy
Cooling by 4am
4.5°C
Cools nicely
Tonight's plan
Hot, sticky air tonight — your body will struggle to cool itself.
Windows
Closed
Warmer outside than a good bedroom — opening them makes it worse, not better
Heating
Off
Warm enough — heating would make it harder to sleep, not easier
Bedding
Sheet only
Cotton or linen — synthetic traps heat against your skin
Fan
Essential
Hot and humid — your sweat can't evaporate without airflow
Based on temperature, dew point, wind, and overnight cooling
Why this matters
At 23°C overnight, your bedroom will sit well above the 16–18°C range sleep researchers recommend. Your body needs to drop its core temperature by about 1°C to initiate sleep — at these temperatures, it can't do that efficiently without help.
The dew point — 18°C — is the real problem tonight. High dew point means your sweat can't evaporate, which is your body's primary cooling mechanism. This is why humid heat feels worse than dry heat at the same temperature, and why a fan helps more than you'd expect.
The week ahead
Sun will be the best night, tonight the worst.
Brent · next 7 nights
Next great sleep night: Sat.
Nearby tonight