I’d add to pay attention to your arrival time when making your sleep plan. Most European destinations have an arrival between 5-8 am. Pre Covid (not sure if they are still operating) we had a flight from SEA to AMS that would land around 11 am and you’d get to your room around 1. At this point, it didn’t make much sense to sleep as it could ruin your chances of falling asleep at night. In any case, just don’t oversleep during your nap. Count on waking up questioning your life choices and be thankful the windows don’t open else you may jump. It all becomes worth it once you clear the fog and hit the town!

Side note: If you are a coffee drinker, plan on the in room coffee being the instant packets with a hot pot for the water.