Pretty much anyone who’s ever stayed in a hotel has had the experience of tossing and turning the first night and feeling far from rested in the morning.
You might have attributed your sleeplessness that first night to jet lag, a too-hard or too-soft mattress or the light in the hallway seeping under the door to your room, but you’d be wrong. Think about it: While you do get acclimated to your new time zone, the mattress and the light remain constant, yet you usually sleep better on subsequent nights in the hotel.
