After arriving in Yangon at 11am and our onward flight at 1.50am the next morning we booked a "day use" room at Myanmar Life.
Room was clean and had a reasonable bathroom, bed was a little uncomfortable but didn't stop us getting a couple of hours sleep. Think of a basic Travelodge standard.
The hotel is about 3 minutes from the airport and the shuttle bus we asked for was there exactly on time.
Wouldn't consider using for a longer stay but glad we did book as the few hours sleep and rest was a real help.