Okay mommas my little one will be 4 months old she sleeps no problem at night in her cradle but when…

Okay mommas my little one will be 4 months old she sleeps no problem at night in her cradle but when I put her down for naps in her crib during the day she wakes up instantly ! She will only nap on me during the day... advice ? Tips ? Picture of her just because 😍