Sleep Tight, Inc. manufactures mattresses. The estimated number of mattress sales for the first three months of 2018 is as follows:

January 40,000

February 50,000

March 60,000

Finished goods inventory at the end of 2017 was 12,000. On the average, 25% of the mattresses are produced during the month before they are sold, which normally accounts for the ending balance in finished goods inventory. The planned selling price is $150 per unit.

How many mattresses are budgeted to be produced in January?