WordNet (r) 3.0 (2006):

bed of roses
    n 1: a flower bed in which roses are growing [syn: rose bed,
         bed of roses]

Moby Thesaurus II by Grady Ward, 1.0:

30 Moby Thesaurus words for "bed of roses":
   Easy Street, affluence, clover, comfort, contentment, ease,
   easy circumstances, felicity, fleshpots, gracious life,
   gracious living, happiness, lap of luxury, life of ease,
   loaves and fishes, luxury, prosperity, prosperousness, security,
   solid comfort, success, the affluent life, the good life,
   thriving condition, upward mobility, velvet, weal, wealth, welfare,
   well-being