Restless in bed? Play a piano... not oddly, it helps induce sleep (6,4)

I believe the answer is:

pineal body

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'it helps induce sleep' is the definition.
The definition suggests a singular noun which matches the answer.

'restless in bed? play a piano not oddly' is the wordplay.
'restless' indicates an anagram (letters not resting).
'not oddly' indicates alternate letters (odd letters are removed).
'play'+'a'+'piano'='playapiano'
The alternate letters of 'playapiano' are 'lypao'.
'in'+'bed'+'lypao'='inbedlypao'
'inbedlypao' is an anagram of 'PINEAL BODY'.

Can you help me to learn more?

I've seen this clue in The Hindu.

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