Sun parlors

• Rooms with views
• Good places for basking
• Glassed-in porches
• Places to find people lying
• Glass-roofed rooms
• Sun spots
• Certain hospital rooms

Wiktionary Word definitions in Wiktionary
n. (plural of solarium English)

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Solarium \So*la"ri*um\, n.; pl. Solaria . [L. See Solar , n.] An apartment freely exposed to the sun; anciently, an apartment or inclosure on the roof of a house; in modern times, an apartment in a hospital, used as a resort for convalescents. (Zo["o]l.) ...

Wikipedia Word definitions in Wikipedia
Solaria was a fictional human-inhabited planet in Isaac Asimov 's Foundation and Robot series. It features mainly in The Naked Sun , to a lesser extent in some later novels.