I have travel size, love it. LO likes the whale sound which I found surprising but it's awesome when out shopping or just to be able to put it anywhere you need. The timer thing hasn't been an issue here, LO is out way before it times out
We have the full size but agree that I wish it didn't turn off after 45 minutes! We have since stopped using it and use a sound machine that can run all night
Re: Sleep Sheep?
SpaSleep Lullaby sound machine. It works indefinitely or on a timer. Just light, just sound or both.
I'm guessing you want something that is battery operated?