Always too bad when crap like this happens.
For the longest time, Sleep Country (USA) had a big grip on the Pacific Northwest (being based here), and still does in Canada (shared logo and jingle but separate companies). Then they were bought by Sleep Train (good riddance -- terrible jingle), and then bought again by Mattress Firm, a group I'd never heard of. Only four stores in WA/OR/ID closing, so their locations out here are evidently more profitable and not as closely spaced (also more competition). Nevertheless, I'd bring back that Sleep Country jingle in a second if I could!
Almost like north TX, Mattress Firm bought Mattress Giant, then later on, Sleep Experts. For some reason, Mattress Firm assimilated all the Mattress Giant stores while thinning out a few; while they left the Sleep Experts stores named the same. I always wondered if they were really biting off more than they could chew.
I looked on the TX list, there's a few up here closing, more around the Houston area. Even with the few they're closing, there's still a butt-load of them left over. There's only one multi-corner example that I know of--north of downtown Dallas a few exits up on US 75, there are 2 Mattress Firm storefronts on the SW corner, 1 on the NW corner, and a Sleep Experts on the SE corner.