Great fun! Well designed little puzzles :) I think losing a life and being sent all the way back to the beginning is pretty harsh - it becomes an exercise in watching the timer take you to game over. Controls well and the whole thing is very cute!
Yeah, I think I didn't make the checkpoints obvious enough. If you hit the beds when you lose all 9 lives you restart at the last bed you touched. But when the timer runs out you do start again at the beginning.