
Why Your Bedroom Air Ruins Sleep After Midnight
You slept eight hours and still woke up groggy. It's not the mattress. It's the sealed room slowly filling with the CO2 you exhaled all night, right through your deepest sleep and REM stages.

Why Your Bedroom Air Ruins Sleep After Midnight
You slept eight hours and still woke up groggy. It's not the mattress. It's the sealed room slowly filling with the CO2 you exhaled all night, right through your deepest sleep and REM stages.