guest beds - trundles?

[makingamove]

I like the ikea day beds as they have drawers underneath and (I think) the guest bed comes up to the height of the normal bed. But they're quite expensive at £250ish without mattresses and having 3 sides might dominate too much in a small room. So....
has anyone come across a trundle style guest bed which has drawers underneath, both beds come up to same height, cheaper than the ikea ones?

I've seen some cabin bed style ones but they look like the guest would be on a lower level. I'm hoping we could put couples up on it rather than kids.

the ikea ones
www.ikea.com/gb/en/catalog/products/50080315
www.ikea.com/gb/en/catalog/products/60 162886