So do you have any onsies that you really like?
I've got a couple of sleepers from The All-In-One Company. I agree. They are very expensive, but I have enjoyed mine. I've got one of the cuddle fleece ones, that keeps me very warm during the winter, especially when I've lost power a few times. I've got another one that's not as thick of fleece and I love it as well.
I'm also small enough, that I can wear boy sized clothes. I haven't seen any this year or last year, but stores here in the US like Target would also carry sleepers in the boys department. I was amazed when I discovered them a few years back, so I bought a bunch of them. And for several years in a row, I'd make a trip to the nearest Target store (about 100 miles away), and pick up a few of the new patterns that they had in the XL size. Now it seems that they are only selling them up to size M or L, and I can't fit into those. Guess they just weren't selling well in other areas, and they stopped producing them. But I'm good. I've still got a bunch of them stored away that I haven't even got to use yet.