Described herein are neuroactive steroids of the Formula (II) : or a pharmaceutically acceptable salt thereof; wherein A, R1, R2a, R2b, R3a, R3b, R4a, R4b, R5, R6 and <;u>;-----<;/u>; are as defined herein. Such compounds are envisioned, in certain embodiments, to behave as GABA modulators. The present invention also provides pharmaceutical compositions comprising a compound of the present invention and methods of use and treatment, e. g., such for inducing sedation and/or anesthesia.