The first example of the advantage of companionship spoke of the aid and support that are thus given; the present verse tells of the comfort thus brought. If two lie together, then they have heat. The winter nights in Palestine are comparatively cold, and when, as in the case of the poorer inhabitants, the outer garment worn by day was used as the only blanket during sleep (Exodus 22:26, Exodus 22:27), it was a comfort to have the additional warmth of a friend lying under the same coverlet.
Solomon could have had no such experience.