For Sleeper class its not provided...You can check with AC coach attendant for one but depends whether they provide or not also need to pay for it.
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In addition to it Railways have started take away Bedroll option for Passengers few Yrs back but don't if its still in Practice.
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will now be able to book their takeaway bedrolls through IRCTC’s Tourism portal with an option to book a bedroll kit comprising of Pillow, Bed sheet to spread and Bed sheet, One each to pullover at Rs.140/- and a blanket kit comprising o of a a soft and cosy blanket at Rs. 110/-.
In order to avail these services, passengers can log into their IRCTC booking and click on the bedroll section and enter the required PNR and other information. Once booked, the bedroll/blanket kit shall be delivered to the passenger at their train seat against the kit voucher that was issued to the passenger online at the time of booking.
In addition to the above online booking option, passengers can also choose to buy these kits at IRCTC managed Food Court at Mumbai Central and Food Track Food Plaza at CST Railway stations.