Looked quite ok when my girlfriend and I first arrived. The first day no one came to clean the room which did not disturb us much as we are laid-back people.
But when we came home the second night the room was perfectly cleaned, fresh towels in the bathroom and … MY GIRLFRIENDS LAPTOP AND DIGICAM WERE STOLEN!!!

The hotel manager said he would investigate the case and as it turned out 3 more rooms got robbed! I don’t want to blame anyone but I remember this cleaning guy lying on the ground listening to his headphones and writing sms and he didn’t look like the most trustworthy person.
Copenhagen police was very laid-back and the officer wrote extremely slow on her computer the name of my gf. That’s pretty much all she did!
Anyway, the hotel manager sayed he talked to the boss of zleep hotels and that unfortunately the responsibility lies in the household insurance of my gf. So we checked in this hotel, got robbed obviously by someone with an opening card and this guy tells us he is not responsible!!
My gf is very harmonious and peaceful and so she accepted his offer he made after she called him and told him she is a student and broke of 200 and something Euros.
But he still insisted that he is not responsible for the stuff stolen out of his hotel!!!
If someone proves him right I cancel this review but I don’t think Danish law sucks that much.
So please don’t go to Zleep Airport Hotel!!!

This hotel is really handy for the airport, only a couple of hundred yards from the train stop and not too much airport noise. You have to cross a very busy road to get too it but there's a pedestrian crossing (without zebra stripes but it gives a little bit of safety). I stayed in a single room which was very basic but spotless. You could pay for internet access in the lobby area and there were lots of vending machines for snacks. They have a 24 hour automated check-in service which I didn't use but could see myself availing of if I had a late flight. I didn't have breakfast there. The bathroom was basic but perfectly adequate.

First thing: Copenhagen is the most expensive city we've stayed in. I managed to get decent rooms for around 50-70€ in London, Paris and Barcelona, amongst others, but Copenhagen was by far the dearest.

I've searched a lot before booking and it turned out that if you want to sleep in the city and wanted a room with bathroom you had to shell out at least 120€ for 2 people a night.

So I took the Zleep. Here are the facts and you decide if it's for you:

+"relatively" cheap
+100m from train station. 3 min to airport, 8 min. to city, frequent trains
+clean enough

-the beds: every movement of either of us woke me and my girlfriend. And they're terribly soft. Normaly I can sleep everywhere, but these are just the worst beds I've ever slept in.
-noise: one night I could hear the TV from another room, the next I could hear my neighbour snoring. Again, I'm not at all sensitive to these things but these walls are just paper.
-the shower is practically over the toilet, you have to be very nimble not to put everything under water.

I personally have stayed at dirt-cheap hotels like Etap in Germany or Travelodge in the UK and would go there again to save money. But because of the terrible beds I wouldn't go to the Zleep again.

We stayed here for one night. The hotel reminded me of a youth hostel, very small room, spartan furnishings, and tiny bathroom reminiscent of an RV we once rented. The bed was small but comfortable. I thought it was overpriced for what you got.