1. Sleep inducing
   - soporific, somniferous, somnific, hypnogogic, hypnagogic 
2. Inducing mental lethargy
   - narcotic, soporific

See also: depressant, uninteresting

• pose
• posed
• Poseidon
• poser
• poseur
• poseuse
• posey
• posh
• posing
• posit
• position
• position effect
• position paper
• positionable
• positional
• positional notation
• positional representation system
• positioner
• positioning
• positive
• positive charge
• positive chemotaxis
• positive correlation
• positive degree
• positive feedback