Yes! The chair mode of the Draumr Double is great - We're leaning towards calling if a flying couch! Anyway, the best way to turn your double bed into chair mode is to tighten the straps in the following order: First tighten the middle strap by your legs, then the outer straps (each side) by the legs - lifting some of the weight off your legs will make tightening easier and also lessen the force and wear on the straps. Then you sit up a bit and tighten the middle strap by your backs, lastly you tighten the outer back straps.
If you tighten the back straps first, you will slide down and make it very difficult to tighten the knee straps, so start with the knees!
Check out this video to see how we do it!