Daegu Tourism has done two good write ups on Spas and Motels in Daegu.
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Party Motels
https://www.facebook.com/?ref=home#!/notes/visit-daegu-2011_eng/motels-in-daegu-are-awesome-o-cant-wait-till-my-b-day-party/202265916509073

Some of these party motels look quite fun with games rooms, pool tables, giant tv screens, bbq areas. I have to find out where they are. I've become quite spoilt last two weekends staying in motels for under $40 each

Spas
https://www.facebook.com/?ref=home#!/notes/visit-daegu-2011_eng/get-relaxed-at-daegus-famous-jjimjilbangs/201452703257061

Something I want to try is the saunas and jimjilbangs. My friend has been using jimjilbangs for overnight trips. For 5000w ($5) entry its a sauna where you have a mat to sleep for the night. They give you a robe to change into but she warns me its not for light sleepers as you hear people coming in and out of the large room, which is why I've never tried it for an overnight stop.

Famous Spas in Daegu
https://www.facebook.com/#!/notes/visit-daegu-2011_eng/famous-spas-in-daegu/205122179556780



This article was reprinted on TheKoreaBlog
http://blog.korea.net/?p=5707

and on this site
http://www.hancinema.net/daegu-motels--spas-34957.html