Day bed with trundle bed underneath - recommendations please.

[SDTGisAnEvilWolefGenius]

We are outfitting a bedroom as a combined spare room and little sitting room, so we need a sofa that can become a double bed. We don't want to get a futon or a sofa bed - we've tried them and don't like them - so we are looking at day beds with a trundle bed that stows underneath.

I have looked at the IKEA Hemnes day bed, which sort-of what we are looking for, but we would prefer solid wood.

We have found a day bed made by a firm called Serene - it looks just what we want but there don't appear to be any stockists near enough for us to go and look at one, and if we are spending a bit more, we want to make sure we are getting a piece of furniture that will last and is nice quality.

The one I am looking at is the Eleanor day bed - has anyone got this day bed (or a similar Serene product) and if so, what did you think of it?

Otherwise, can anyone recommend a similar day bed with trundle bed underneath?

Thanks in advance!