My fool-proof technique for squeezing in a little midday shut-eye.
Requires just three simple steps:
1) Drink a cup of coffee
2) Set a timer for 20 minutes
3) Snooze (ideally on the couch with a beloved pet)
It works because, on average, it takes about 20 minutes for your sleep cycle to initiate, and 20 minutes for caffeine to hit your system. By pairing them together, you can snooze without disrupting your circadian rhythm. No grogginess.