Lullaby

(Player's Handbook v.3.5, page 249, DnD 3.5)

Enchantment (Compulsion) [Mind-Affecting]

Level: ; Bard 0
Components: V, S
Casting Time: 1 standard action
Range: Medium(100 ft. + 10 ft./level)
Area: Living creatures within a 10-ft.-radius burst
Duration: Concentration + 1 round/level (D)
Saving Throw: Will negates
Spell Resistance: Yes

Any creature within the area that fails a Will save becomes drowsy and inattentive, taking a -5 penalty on Listen and Spot checks and a -2 penalty on Will saves against sleep effects while the lullaby is in effect.
Lullaby lasts for as long as the caster concentrates, plus up to 1 round per caster level thereafter.