Hi jxkim,
Yes … they have been mentioned many times on the forum. A forum search on “angelbeds” (you can just click this) will bring up lots more information about them.
They would be worth a visit if you are in the Houston area (and they are listed as a Houston option in this post) but I don’t think they are in the “best value” group for an online purchase.
They are a sister company to Tranquility Mattress, Dream Number Beds, and the Sleep Better Store all of which are part of the Merrick Group (which is a marketing company).
Phoenix