Wait, wait, don’t tell me

Wait, wait, don’t tell me! Your sleep score (from an Apple Watch, Fitbit, your smart mattress or other device) can make or break your day. Researchers told people they slept horribly, and they performed worse on tests. If folks were told they slept like a champ, they performed better. Try this: Don’t look at your sleep score until later in the day so you can decide how you feel.