is bird nest really effective?

bird nest are expensive to me. but is it really effective to make infant baby sleep longer? my mil suggest me to put infant baby in 'buaian:

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Tulis jawapan

kalau kualiti mmg agak mahal.. kalau x mampu banyak lg makanan lain yg elok untuk kita. eh jap.. bird nest makanan ke atau trmpa tidur? haha